Using matching to estimate treatment effects: Data requirements, matching metrics, and Monte Carlo evidence

作者：Zhao Z^*

来源：Review of Economics and Statistics, 2004, 86(1): 91-107.

DOI：10.1162/003465304323023705

We compare propensity-score matching methods with covariate matching estimators. We first discuss the data requirements of propensity-score matching estimators and covariate matching estimators. Then we propose two new matching metrics incorporating the treatment outcome information and participation indicator information, and discuss the motivations of different metrics. Next we study the small-sample properties of propensity-score matching versus covariate matching estimators, and of different matching metrics, through Monte Carlo experiments. Through a series of simulations, we provide some guidance to practitioners on how to choose among different matching estimators and matching metrics.

• 出版日期2004-2
• 单位北京大学